#class1{
    text-align: center;
    font-size: 15px;
    color: #6dbc0c;
}
.class2{/*关于云端的介绍*/
    margin: 0 auto;
    border: 1px solid black;
    width: 900px;
    height: 450px;
    text-align: center;
    border-bottom-style: none;
    border-left-style: none;
    border-right-style: none;
    border-top-style: none;
    background-color: #FFF;
}
.square1 {/*三个图片的板块*/
    width: 255px;
    height: 250px;
    border: 1px solid black;
    text-align: center;
    background-color: black;
    padding-top:60px;
    margin-left: 30px;
}
.blackscreen1 ul li a:link{
    color: #FFF;
}/*定义超链接的颜色*/
.blackscreen1 ul li a:hover{
    /*color: #5c74ff;*/
    color: #6dbc0c;
}/*鼠标悬浮时的颜色*/
*{
    margin: 0;
    padding: 0;
}
.blackscreen1 ul{
    /*display: inline-block;*/
    padding-left: 0;
    list-style: none;
    text-align: left;
}
.blackscreen1{/*底部板块展示*/
    width: 1905px;
    height: 245px;
    margin: auto;
    text-align: center;
    line-height: 35px;
    display: flex;
    background-color: #222222;
}

.blackscreen2{
    width: 1320px;
    height: 245px;
    margin: auto;
    /*display: inline-block;*/
}

.item1{/*每一列的文字板块展示*/
    width: 150px;
    height: 245px;
    border: 1px solid red;
    margin: 0px auto;
    font-size: 15px;
    float: left;
    text-align: left;
    border-bottom-style: none;
    border-left-style: none;
    border-right-style: none;
    border-top-style: none;
}
.item2{/*每一列的文字板块展示*/
    width: 220px;
    height: 245px;
    border: 1px solid red;
    margin: 0px auto;
    font-size: 15px;
    padding-left: 100px;
    float: left;
    text-align: left;
    border-bottom-style: none;
    border-left-style: none;
    border-right-style: none;
    border-top-style: none;
}
.item3{/*每一列的文字板块展示*/
    width: 191px;
    height: 245px;
    border: 1px solid red;
    margin: 0px auto;
    font-size: 15px;
    float: left;
    text-align: left;
    border-bottom-style: none;
    border-left-style: none;
    border-right-style: none;
    border-top-style: none;
}

.item4{/*每一列的文字板块展示*/
    width: 165px;
    height: 245px;
    border: 1px solid red;
    margin: 0px auto;
    font-size: 15px;
    float: left;
    text-align: left;
    border-bottom-style: none;
    border-left-style: none;
    border-right-style: none;
    border-top-style: none;
}

.item1 a{
    color: #8e8e8e;
    text-align: left;
}
.item1 a:hover{
    color: #6dbc0c;
}
.item1 a:active{/*点击超链接时的颜色*/
    /*color: #6587ff;*/
    color: #6dbc0c;
}
.item2 a{
    color: #8e8e8e;
    text-align: left;
}
.item2 a:hover{
    color: #6dbc0c;
}
.item2 a:active{/*点击超链接时的颜色*/
    color: #6dbc0c;
}
.item3 a{
     color: #8e8e8e;
     text-align: left;
 }
.item3 a:hover{
    color: #6dbc0c;
}
.item3 a:active{/*点击超链接时的颜色*/
    /*color: #6587ff;*/
    color: #6dbc0c;
}
.item4 a{
    color: #8e8e8e;
    text-align: left;
}
.item4 a:hover{
    color: #6dbc0c;
}
.item4 a:active{/*点击超链接时的颜色*/
    /*color: #6587ff;*/
    color: #6dbc0c;
}

.blackscreen1 ul li{
    color: #FFF;
    padding: 0px ;
    float: left;
    list-style: none;
}
a{
    text-decoration: none; /*取消掉a标签超链接的下划线*/
}
.square1 a{
    color: #FFF;
}/*定义超链接的颜色*/

.square1 a:hover{
    color: #6dbc0c;
}/*鼠标悬浮时的颜色*/

.square1 a:active{/*访问后的超链接颜色*/
    color: #6dbc0c;
}
.square1 img:hover{
    transform: scale(1.1);
}

.bottom-bar-item{
    width: 46px;
    height: 46px;
    clear: none;
    display: inline-block;
    margin-right: 5px;
    margin-bottom: 8px;
    border-radius: 18px 18px 18px 18px;
    background-color: #8e8e8e;
    border: 1px solid red;
    position: sticky;
    border-bottom-style: none;
    border-left-style: none;
    border-right-style: none;
    border-top-style: none;
}
.bottom-bar-item-box{
    width: 1905px;
}

#con1 ul,li {
    list-style:none;
    display:block;
}
#scrollBox {
    height:150px;
    width:600px;
    margin:20px auto 20px auto;
    background:#fffffc;
    overflow:hidden;
    text-align: center;
    border-radius: 10px;
    /*box-shadow: 0 0px 12px 0 rgba(0, 0, 0, 0.1);*/
    font-size: 20px;
    font-weight: bold;
    color: #8e8e8e;
}
#scrollBox #con1,#con2 {
    width:600px;
    margin: auto;
}
#scrollBox li {
    height:18px;
    line-height:18px;
    text-align:center;
    margin-bottom:15px
}
